Koss186818 Plug Binaural Earphone(186818)

Description

The Plug earbud is the first of its kind. It delivers accurate acoustical reproduction and unbelievable isolation typically found in more expensive, closed-style earphone. The Plug features a dynamic element that is positioned just outside the ear and connected to a tubular port structure that is inserted on a soft expandable cushion into the ear canal. The soft foam cushion expands for a custom fit to improve isolation and enhance deep bass and treble clarity. The Plug features special ear cushions made of hydrophilic, formed urethane, for a custom fit each and every time it is inserted into the listeners ear.